We report the synthesis and electron donor–acceptor features of a novel nanohybrid, in which the light-harvestingand electron-donating properties of ameso-tetraarylporphyrin(TArP) are combined with the electron-accepting features ofnitrogen-doped carbon nanodots (NCNDs). In particular,inan ultrafast process (> 1012s@1), visible-light excitation trans-forms the strongly quenched porphyrin singlet excited statesinto short-lived (225 ps) charge-separated states.Onthe otherhand, ultraviolet light excitation triggers anon-resolvabletransduction of singlet excited state energy from the NCNDs tothe porphyrins,followed by the same charge separationobserved upon visible light excitation.
Porphyrin Antennas on Carbon Nanodots: Excited State Energy and Electron Transduction
Arcudi, FrancescaMembro del Collaboration Group
;Đorđević, Luka;Prato, Maurizio
Membro del Collaboration Group
2017-01-01
Abstract
We report the synthesis and electron donor–acceptor features of a novel nanohybrid, in which the light-harvestingand electron-donating properties of ameso-tetraarylporphyrin(TArP) are combined with the electron-accepting features ofnitrogen-doped carbon nanodots (NCNDs). In particular,inan ultrafast process (> 1012s@1), visible-light excitation trans-forms the strongly quenched porphyrin singlet excited statesinto short-lived (225 ps) charge-separated states.Onthe otherhand, ultraviolet light excitation triggers anon-resolvabletransduction of singlet excited state energy from the NCNDs tothe porphyrins,followed by the same charge separationobserved upon visible light excitation.File | Dimensione | Formato | |
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